The State and Local Taxes update (basically rolling back the removal of deductions from the 2017 TCJA) was a major element for representatives from states with high income or local taxes. It would be a significant departure from earlier posturing if they went that way.
Also in the news, and probably on a related note to the above, is the White House considering allowing the $609,351 and above federal income tax rate to revert from current 37% back to it's pre-2017 rate of 39.6%, i.e. basically not renew that one piece of the TCJA to help offset the costs of no tax on tips, etc.
Of the two, the latter seems like it would be more palatable for politicians.